You have to look into yourself and say what would I really feel about that, what am I willing to give up in order to help save a life.

你必须去反省自己,说出自己真正的感受，问问自己为了拯救一个生命会放弃什么。

普林斯顿公开课 - 人性课程节选

Because if you did what I suggested with the list, the time to look up the key would be linear in the length of the list. You'd have to look at each element until you found the key.

字典是用一种很神奇的，叫做散列法的算法,来实现的，后面我们将,会学到一点关于。

麻省理工公开课 - 计算机科学及编程导论课程节选

I know that some people would say yes, shoot up their hands, and they look around in astonishment that no one else is with them.

我知道有人会说没问题，一下子把手举起，看看周围，惊讶地发现只有自己举手。

耶鲁公开课 - 心理学导论课程节选